Anonymous Just Declared War on ISIS in a Chilling Video Online

Anonymous, the controversial hacking group known for exposing Chinese cybersecurity attacks on the United States, is officially waging a war against ISIS. The hacktivists posted a video to YouTube Saturday after the Islamic State group took responsibility for Friday's deadly terror attacks in Paris, which left 129 dead and hundreds of others wounded.

"Anonymous from all over the world will hunt you down," a spokesperson announces in the video, wearing a Guy Fawkes that's become a symbol of the group's subversive ideology. "You should know that we will find you and we will not let you go. We will launch the biggest operation ever against you."

The dark warning follows a night of chaos in terror in the heart of Paris, where eight suicide bombers opened fire at six separate locations throughout the city of lights on Friday night, detonating outside of the Stade de France, taking at least 100 hostages at the Bataclan concert hall and killing Parisians who were dining in restaurants and bars.

The Islamic state has since taken responsibility for the attacks in an official announcement, writing, "Eight brothers, wrapped in explosive belts and armed with machine rifles, targeted sites that were accurately chosen in the heart of the capital of France. Let France and those who walk in its path know that they will remain on the top of the list of targets of the Islamic State."

Make no mistake: #Anonymous is at war with #Daesh. We won't stop opposing #IslamicState. We're also better hackers. #OpISIS

In the video, Anonymous says it will work tirelessly to take down any sites promoting propaganda from the Islamic State, and use its influence online to crush ISIS from gaining any more power.

Most recently, the group was criticized for its tenuous connection with #OpKKK, a campaign to release the identities of Ku Klux Klan members in the U.S. It's unclear whether the information released was credible.

Anonymous says this will be the largest operation it has conducted against ISIS to date. "The French people are stronger than you," the man says in the video. "And will come out of this atrocity even stronger."

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